ci: make docs agent review guard requireable

[SahilAujla]

Summary

• Makes the docs agent review guard produce a check result for every submitted review so it can be required in branch protection.
• Keeps human-authored PRs passing without enforcement.
• For docs-agent PRs, fails the required check when current active approvals are only from the trusted requester set.

Behavior

• Human-authored PR approval: pass.
• Docs-agent PR with non-requester approval: pass.
• Docs-agent PR with requester approval plus non-requester approval: dismiss requester approval and pass.
• Docs-agent PR with only requester approval: dismiss requester approval and fail.
• Docs-agent PR without trusted requester attribution: keep the existing missing-attribution behavior.

[github-actions]

🔗 Preview Mode

Name	Status	Preview	Updated (UTC)
Alchemy Docs	✅ Ready	🔗 Visit Preview	Apr 27, 2026, 8:08 PM

[github-actions]

🔍 Link Check

Status: ⏭️ Skipped (no content changes)

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Submitted in error — meant to leave as pending draft. Will re-post.

[SahilAujla]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. What shall we delve into next?

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